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The Number of the Day: 60%

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The increase in the cost of Groucho glasses from 2009 to 2011 was 60% (from $15/dozen to $24/dozen), according to the 2011 Cost of Laughing Index – an annual report of the fluctuations in the finances of chuckling consumers. The index looks at the price changes of 16 different comedy-based things from comedy club tickets to rubber chickens. Overall for 2011 the cost of laughter is estimated to be up 3%.

Related Fact: Apparently the air has really been let out of the Whoopie Cushion market (I’m so sorry for that joke). Just last year, a dozen of the Bronx Cheer-emitting devices rang in at around $3. Today, they can be had for right around $1.20.

[Sources: AOL Weird News. See previous Numbers of the Day here.]

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This Puzzling Math Brain Teaser Has a Simple Solution
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Fans of number-based brainteasers might find themselves pleasantly stumped by the following question, posed by TED-Ed’s Alex Gendler: Which sequence of integers comes next?

1, 11, 21, 1211, 111221, ?

Mathematicians may recognize this pattern as a specific type of number sequence—called a “look-and-say sequence"—that yields a distinct pattern. As for those who aren't number enthusiasts, they should try reading the numbers they see aloud (so that 1 becomes "one one," 11 is "two ones," 21 is "one two, one one,” and so on) to figure the answer.

Still can’t crack the code? Learn the surprisingly simple secret to solving the sequence by watching the video below.

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What Number Is The Answer?
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